Do what I say not what I do but..

One tip I got from the guy cribb clinic which made a BIG diference to me bouncing in gybes ( when I do it right) is set up 50 -100m before . Get things under control really put your weight into the harness for mast foot pressure using his stance etc then as you enter just pull down on the boom to unhook and keep elbows down and pull down into the boom as you enter.. Stops you standing up to unhook as that's when my board starts to get out of control and bounce.. Also rake the rig forward a tad straight after you unhook which will allow you to take your rear foot out easier..Smoother entry makes for much smoother gybes..